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Finding the Fourth Proportional to 105,891.66, 158,689.62 and 58,529.40

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Solution

The fourth proportional to 105,891.66, 158,689.62 and 58,529.40 is: 87,712.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,891.66 : 158,689.62 = 58,529.40 : x
  2. Step 2: Convert to fraction form
    105,891.66/158,689.62 = 58,529.40/x
  3. Step 3: Cross multiply
    105,891.66x = 158,689.62 × 58,529.40
  4. Step 4: Simplify right side
    105,891.66x = 9,288,008,244.83
  5. Step 5: Solve for x
    x = 9,288,008,244.83/105,891.66
  6. Step 6: Final answer
    x = 87,712.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.